CN201676902U

CN201676902U - Guide roller chained type connection structure elbow box

Info

Publication number: CN201676902U
Application number: CN2010202065597U
Authority: CN
Inventors: 王勇伟; 潘炎芳; 何耀耀
Original assignee: DONGYANG WONUOSI CEMENTED CARBIDE Co Ltd
Current assignee: DONGYANG WONUOSI CEMENTED CARBIDE Co Ltd
Priority date: 2010-05-28
Filing date: 2010-05-28
Publication date: 2010-12-22
Anticipated expiration: 2020-05-28

Abstract

The utility model relates to the technical field of metallurgy steel rolling devices, in particular to a guide roller chained type connection structure elbow box which solves the problems of instable using conditions, easy abrasion, short using period and the like of the guide device in the existing high-speed rod-rolling mill technology. The guide roller chained type connection structure elbow box comprises an elbow shell and a feed nozzle arranged at one end of the elbow shell, and is characterized in that the elbow shell is internally provided with a plurality of groups of guide rollers, each group of guide roller comprises two guide rollers which are matched with each other, the plurality of groups of guide rollers are distributed along the axial central line of the elbow shell, every two guide rollers which are matched are distributed along the radial direction of the elbow shell, and the periphery of each guide roller is provided with an arc-shaped annular groove. The guide roller chained type connection structure elbow box can use smaller frictional resistance to roll steel, reduce the abrasion of an elbow, increase the surface quality of wire rods, and improve the rolling speed of high-speed wire rods.

Description

Roll Collar chain type syndeton bend pipe box

Technical field

The utility model relates to metallurgical rolling unit technical field, and especially a kind of employing continuous type circular ring type Roll Collar is used for the Roll Collar chain type syndeton bend pipe box of line, rod hot rolling processing.

Background technology

In steel and iron industry, need a kind of high red hardness material to satisfy the processing requirement under the high temperature more than 950 ℃.From first generation rod-rolling mill to the five generations rod-rolling mill, because mill speed is low, can be directly carry out wrapping wire by the wire winding device of Laying head and Laying head front end, and the 6th generation high-speed rod-rolling mill owing to upgrade from global design, the design mill speed is also brought up to 140 meter per seconds from 90 meter per seconds in the 5th generation, wrapping wire structure originally can not satisfy the 6th generation milling train instructions for use, therefore added a bend pipe at the Laying head front end, wire rod is entered, to reduce the wrapping wire pressure of Laying head when entering Laying head with certain angle.Because wire velocity height, operating temperature is also more than 950 ℃, the working environment of bend pipe is extremely abominable, wear extent is very big, and the required enormous impact power of bend pipe can't be born common carbide alloy at all, once impacting the carbide alloy in the bend pipe is smashed fully often, this become the 6th generation high-speed rod-rolling mill a bottleneck.

Existing guide and guards is various informative, but is not quite similar from the structure to the action effect.As patent publication No. is CN201324754 high-speed rod-rolling mill vertical guide roll, comprise roll surface, roll shaft, bearing, bearing holder (housing, cover) is contained on the roll shaft, also is provided with the spacing back-up ring of bearing on the roll shaft, and this high-speed rod-rolling mill vertical guide roll mainly is to solve the scuffing on rolled piece surface and the problem that bearing glides.And for example Chinese patent publication number 201455014U high speed wire rod finishing block group guide and guard, it comprises housing, plate, the feature of this structure is that plate is a rectangular pyramid shape, and the both sides of plate are provided with housing, and the both sides in addition of plate are provided with clamping plate, housing is the steel plate that is arranged on the plate both sides, wherein the steel plate of a side is provided with limited block, and housing and plate weld together, and housing is connected by the clamping plate axle with clamping plate, clamping plate are fixed together by stud and plate, and the end of clamping plate is provided with the guide and guard wheel.Be 201410503 high-speed rod-rolling mill pinch rolls outlet guide and guard also just like the Chinese patent publication number, be arranged between pinch rolls outlet and the spinneret inlet, comprise one section of outlet guide, two sections of outlet guides, have one to connect flex point between two sections of one section of outlet guide and the outlet guides, be provided with deflector roll one connecting on the flex point, be provided with deflector roll two at the afterbody of two sections of outlet guides, wherein deflector roll one and deflector roll two are installed on the afterbody that is connected two sections of flex point and outlet guides by eccentric shaft respectively.

Summary of the invention

The purpose of this utility model is in order to solve the guide and guards behaviour in service instability in the existing high-speed rod-rolling mill technology, easy to wear, problems such as life cycle is short, provide a kind of simple in structure, Roll Collar chain type syndeton bend pipe box reasonable in design, it adopts high red hardness ultra-fine cemented carbide material, and according to the contact-making surface more little principle of friction resistance more, be designed to high-speed rod-rolling mill bend pipe box, ultra-fine Roll Collar is fixed in the bend pipe box, and line up the bend pipe form with certain rule and angle, simple sliding friction when making steel becomes the part rolling friction, to prolong the service life of Roll Collar, improve the surface quality of wire rod simultaneously.

Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of Roll Collar chain type syndeton bend pipe box, comprise the bend pipe shell, be installed in the feed nozzle of curved package one end, it is characterized in that being provided with some groups of Roll Collars in the described bend pipe shell, every group of Roll Collar is provided with two Roll Collars that cooperatively interact, some groups of Roll Collars distribute to center line along the bend pipe columella, two Roll Collars that cooperatively interact are along bend pipe shell radial distribution, and described Roll Collar excircle is provided with arc-shaped ring groove.

Adopt ultra-fine Roll Collar of trough of belt and high-speed bearing to be connected to a fixed on bend pipe box inwall, red steel passes along two Roll Collar arc-shaped ring grooves centres that cooperatively interact in some groups, the ultra-fine Roll Collar of Roll Collar is lined up the bend pipe form with certain rule and angle, and between Roll Collar and Roll Collar, leave certain air inlet gap, the wind-force constantly rotation in snap ring that makes Roll Collar rely on wire rod to cross the impulsive force of steel and take up when crossing steel, make the simple sliding friction when originally crossing steel become the part rolling friction, to reduce impulsive force and the friction that Roll Collar itself is born, reduce the energy loss of wire rod, improved the mill speed of wire rod.

As preferably, described Roll Collar is fixed on the bend pipe shell by the guide and guard roll shaft.Bearing can be set, as far as possible self friction of Roll Collar be reduced.

As preferably, an end of described bend pipe shell is provided with feed nozzle, and feed nozzle is axially arranged with material guide hole, and the import of feed nozzle is identical with distance between the two adjacent groups Roll Collar to the distance of first group of Roll Collar.The material guide hole of feed nozzle stretches in the bend pipe shell, and the Roll Collar group equates with distance between the group, and its size can lead being more conducive to less than the external diameter of red steel.

As preferably, described bend pipe shell is made up of plural housing, is provided with the set bolt of two above shell combination embayment shells between the some groups of Roll Collars.Bend pipe shell assembling back is detachable, helps maintenance and changes Roll Collar, because the impulsive force of red steel in the bend pipe shell is bigger, all uses set bolt fastening between per two groups of Roll Collars, makes the overall structure of bend pipe shell stronger.

Effective effect of the present utility model is: make the interior Roll Collar of high-speed rod and bend pipe box remain minimum contact-making surface, frictional resistance with minimum is crossed steel, greatly reduce the wearing and tearing of bend pipe, increased the surface quality of wire rod, improved the mill speed of high-speed rod.

Description of drawings

Fig. 1 is a kind of structural representation of the present utility model.

Fig. 2 is a kind of Roll Collar structural representation of the present utility model.

Among the figure: 1. bend pipe shell, 2. set bolt, 3. guide and guard roll shaft, 4. Roll Collar, 41. arc-shaped ring grooves, 5. feed nozzle, 6. red steel.

The specific embodiment

Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.

Referring to Fig. 1, a kind of Roll Collar chain type of present embodiment syndeton bend pipe box is established one and is had two joint straightways by the bend pipe shell 1 that a joint curved arc section connection is shaped, and is installed in the feed nozzle 5 of curved package one end.

Two support plates about bend pipe shell 1 is established, support plate is provided with 6 groups of screws, and two of every group of screws distribute along bend pipe shell 1 radial axis.In bend pipe shell 1, divide laying 9 groups of Roll Collars 4 to center line along the bend pipe columella, every group of Roll Collar 4 established two that cooperatively interact, two Roll Collars that cooperatively interact 4 are along bend pipe shell 1 radial distribution, Roll Collar 4 is contained on the guide and guard roll shaft 3, the two ends of guide and guard roll shaft 3 be fixed on bend pipe shell 1 about on two support plates, from feed nozzle 5 ends, adorn two groups of Roll Collars 4 between per two groups of screws on the support plate of the left and right sides, adorn one group of Roll Collar 4 between last two groups of screws, establish set bolt 2 in each screw, after 9 groups of Roll Collars 4 have assembled, fastening again set bolt 2, the entrance point of feed nozzle 5 equates with distance between the two adjacent groups Roll Collar to the distance of first group of Roll Collar 4.

Referring to Fig. 2, Roll Collar 4 adopts high red hardness ultra-fine cemented carbide material to make, and is provided with dead eye in the endoporus, and high temperature resistant bearing is housed in the hole.On the circumference of Roll Collar 4 cylindricals, the passage that provides red steel 6 to pass through just is provided the arc-shaped ring groove 41 that the centre position of length direction is provided with after 4 assemblings of 41, two Roll Collars of arc-shaped ring groove.

During work, apparatus of the present invention are loaded onto in end at high-speed rod-rolling mill, import one end of feed nozzle 5 stretches in the bend pipe shell 1, and it is relative with red steel 6 passages that two Roll Collars 4 form the material guide hole of feed nozzle 5 one ends, rolled wire, can make wire rod at high temperature more than 950 ℃ and 140m/s speed high-speed cruising, and coiling has improved nearly a hundred times service life continuously more than 10,000 tons than cast iron bend pipe box of the prior art.

The foregoing description is to explanation of the present utility model, is not to qualification of the present utility model, any structure after the simple transformation of the present utility model is all belonged to protection domain of the present utility model.

Claims

1. Roll Collar chain type syndeton bend pipe box, comprise bend pipe shell (1), be installed in the feed nozzle (5) of curved package one end, it is characterized in that being provided with in the described bend pipe shell (1) some groups of Roll Collars (4), every group of Roll Collar (4) is provided with two Roll Collars that cooperatively interact, some groups of Roll Collars (4) distribute along bend pipe shell (1) longitudinal center line, and two Roll Collars that cooperatively interact are along bend pipe shell (1) radial distribution, and described Roll Collar (4) excircle is provided with arc-shaped ring groove (41).

2. Roll Collar chain type syndeton bend pipe box according to claim 1 is characterized in that described Roll Collar (4) is fixed on the bend pipe shell (1) by guide and guard roll shaft (3).

3. Roll Collar chain type syndeton bend pipe box according to claim 1, an end that it is characterized in that described bend pipe shell (1) is provided with feed nozzle (5), feed nozzle (5) is axially arranged with material guide hole, and the import of feed nozzle (5) is identical with distance between the two adjacent groups Roll Collar to the distance of first group of Roll Collar (4).

4. Roll Collar chain type syndeton bend pipe box according to claim 1, it is characterized in that described bend pipe shell (1) is made up of plural housing, be provided with set bolt (2) between the some groups of Roll Collars (4) two above shell combination embayment shells (1).